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PDF N74F537D Data sheet ( Hoja de datos )
| Número de pieza | N74F537D | |
| Descripción | 1-of-10 decoder 3-State | |
| Fabricantes | Philips | |
| Logotipo |  |
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Philips Semiconductors
1-of-10 decoder (3-State)
Product specification
74F537
DESCRIPTION
The 74F537 is a one-of-ten decoder/demultiplexer with four active
High BCD inputs and ten mutually exclusive outputs. A Polarity
control (P) input determines whether the outputs are active Low or
active High. The 74F537 has 3-State outputs and a High signal on
the Output Enables (OE) input forces all outputs to the high
impedance state. Two input Enables, active High (E1) and active
Low (E0), are available for demultiplexing data to the selected
output in either non-inverted or inverted form. Input codes greater
than BCD nine causes all outputs to go to the inactive state (i.e.,
same polarity as the P input).
TYPE
TYPICAL
PROPAGATION DELAY
74F537
9ns
TYPICAL SUPPLY
CURRENT
(TOTAL)
44mA
PIN CONFIGURATION
Q2 1
Q1 2
Q0 3
P4
OE 5
A0 6
A1 7
Q5 8
Q6 9
GND 10
20 VCC
19 Q3
18 Q4
17 A3
16 A2
15 E0
14 E1
13 Q9
12 Q8
11 Q7
ORDERING INFORMATION
DESCRIPTION
20-Pin Plastic DIP
COMMERCIAL RANGE
VCC = 5V ±10%, Tamb = 0°C to +70°C
N74F537N
20-Pin Plastic SOL
N74F537D
SF01004
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F(U.L.)
HIGH/LOW
A0 - A3
Data inputs
1.0/1.0
E0 Enable input (active Low)
1.0/1.0
E1 Enable input (active High)
1.0/1.0
P Polarity control input
1.0/1.0
OE Output Enable input
1.0/1.0
Q0 - Q9
Data outputs
NOTE: One (1.0) FAST Unit Load is defined as: 20µA in the High state and 0.6mA in the Low state.
150/40
LOAD VALUE
HIGH/LOW
20µA/0.6mA
20µA/0.6mA
20µA/0.6mA
20µA/0.6mA
20µA/0.6mA
3.0mA/24mA
LOGIC SYMBOL
6 7 16 17
4P
15 E0
14 E1
5 OE
A0 A1 A2 A3
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9
VCC = Pin 20
GND = Pin 10
3 2 1 19 18 8 9 11 12 13
SF01005
LOGIC SYMBOL (IEEE/IEC)
DMUX
4 N10
0,10
& 1,10
5 EN
2,10
3,10
6
70
4,10
17
13
10G
0
9
3
5,10
6,10
7,10
14 &
15
8,10
9,10
3
2
1
19
18
8
9
11
12
13
SF01006
1989 Jan 20
1 853–0873 95586
1 page  
Philips Semiconductors
1-of-10 decoder (3-State)
Product specification
74F537
TEST CIRCUIT AND WAVEFORM
VCC
PULSE
GENERATOR
VIN
VOUT
D.U.T.
RL
RT CL RL
Test Circuit for 3-State Outputs
SWITCH POSITION
TEST
tPLZ
tPZL
All other
SWITCH
closed
closed
open
7.0V
90%
NEGATIVE
PULSE
POSITIVE
PULSE
10%
tw
VM
10%
tTHL (tf )
VM
10%
tTLH (tr )
tTLH (tr )
90%
VM
tw
tTHL (tf )
90%
VM
Input Pulse Definition
90%
AMP (V)
0V
AMP (V)
10%
0V
DEFINITIONS:
RL = Load resistor;
see AC electrical characteristics for value.
CL = Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
INPUT PULSE REQUIREMENTS
family
amplitude VM rep. rate
tw tTLH
74F 3.0V 1.5V 1MHz 500ns 2.5ns
tTHL
2.5ns
SF00777
1989 Jan 20
5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet N74F537D.PDF ] | |
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